From 3b9ae658ec77180d13152913a1f63b6f1b2756c2 Mon Sep 17 00:00:00 2001 From: Erik Andr?n Date: Thu, 8 Jan 2009 03:53:50 -0300 Subject: V4L/DVB (11459): gspca - m5602-po1030: Add auto white balancing control Add a po1030 auto white balancing control that's disabled by default Signed-off-by: Erik Andr?n Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/m5602/m5602_po1030.c | 51 ++++++++++++++++++++++++++ drivers/media/video/gspca/m5602/m5602_po1030.h | 2 + 2 files changed, 53 insertions(+) (limited to 'drivers/media') diff --git a/drivers/media/video/gspca/m5602/m5602_po1030.c b/drivers/media/video/gspca/m5602/m5602_po1030.c index 7ec3fbffc4be..7eec6e8ca72e 100644 --- a/drivers/media/video/gspca/m5602/m5602_po1030.c +++ b/drivers/media/video/gspca/m5602/m5602_po1030.c @@ -119,6 +119,20 @@ const static struct ctrl po1030_ctrls[] = { }, .set = po1030_set_vflip, .get = po1030_get_vflip + }, +#define AUTO_WHITE_BALANCE_IDX 6 + { + { + .id = V4L2_CID_AUTO_WHITE_BALANCE, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "auto white balance", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + }, + .set = po1030_set_auto_white_balance, + .get = po1030_get_auto_white_balance } }; @@ -238,6 +252,14 @@ int po1030_init(struct sd *sd) err = po1030_set_red_balance(&sd->gspca_dev, sensor_settings[BLUE_BALANCE_IDX]); + if (err < 0) + return err; + + err = po1030_set_auto_white_balance(&sd->gspca_dev, + sensor_settings[AUTO_WHITE_BALANCE_IDX]); + if (err < 0) + return err; + return err; } @@ -425,6 +447,35 @@ int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) return err; } +int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[AUTO_WHITE_BALANCE_IDX]; + PDEBUG(D_V4L2, "Auto white balancing is %d", *val); + + return 0; +} + +int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + u8 i2c_data; + int err; + + sensor_settings[AUTO_WHITE_BALANCE_IDX] = val; + + err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1); + if (err < 0) + return err; + + i2c_data = (i2c_data & 0xfe) | (val & 0x01); + err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1); + return err; +} + void po1030_disconnect(struct sd *sd) { sd->sensor = NULL; diff --git a/drivers/media/video/gspca/m5602/m5602_po1030.h b/drivers/media/video/gspca/m5602/m5602_po1030.h index 013be33d1b20..1260cfa6e4ef 100644 --- a/drivers/media/video/gspca/m5602/m5602_po1030.h +++ b/drivers/media/video/gspca/m5602/m5602_po1030.h @@ -162,6 +162,8 @@ int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val); int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val); int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val); int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val); +int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val); +int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val); static const struct m5602_sensor po1030 = { .name = "PO1030", -- cgit v1.2.3